Anaplasmosis Statistics - Minnesota Dept. of Health

Anaplasmosis Statistics

In 2017, 638 confirmed or probable cases of anaplasmosis (11.6 cases per 100,000 population) were reported in Minnesota, down slightly from the 733 cases reported in 2016.

  • 385 cases (60%) were male.
  • Median age of cases was 58 years (range, 2 to 97 years), 15 years older than the median age of confirmed Lyme disease cases.
  • 65% of cases reported illness onsets in June and July.
  • 165 (26%) cases were hospitalized at some point for their infection with a median duration of 4 days hospitalization (range, 1 to 34 days).
Despite some annual fluctuations in reported cases, the overall trend is an increase in yearly case totals over time with a median of 632 cases reported per year since 2010.

On this page:
Charts and graphs
Maps
Annual summaries
National Statistics

Charts and Graphs

Maps

Most anaplasmosis cases report likely exposure to blacklegged ticks in the same east-central and north-central Minnesota counties where the risk of Lyme disease is greatest.

Annual Summary Statistics

National Statistics

Updated Monday, 23-Jul-2018 12:49:23 CDT